While booting, (AMD64 Turion x2) 2.6.20.7 kernel locks up hard. Thelast kernel that I tried, 2.6.18.8, worked perfectly without anytrickery. 2.6.20.7 only boots up with "acpi=off" being added to thekernel line. Note that 2.6.18.8 works perfectly with acpi on, whichis really theonly way I can run this box because with "acpi=off" it overheats and freezes.Please let me know if there's anything else that I could do to help with this.